harlequin opal

Hardly any event since the foundation of the city could be mentioned with which the harlequin opal was not connected in some way.

A thousand voices cursed the traitor Xuarez, lauded the Republic, and repeated the prophecy of the harlequin opal.

Nearer and nearer they came to the brink, then Xuarez, evidently seeing he was lost, threw the harlequin opal into the torrent.

In her hand she carried the Harlequin Opal, which glittered faintly in the dim light.

I suppose this shining precious stone is the harlequin opal?